Software Engineer Salary in Illinois

How Much Does a Software Engineer Make in Illinois?

In Illinois, Software Engineers earn a median of $127,770, with most earning between $98,800 and $159,280 (BLS Occupational Employment Statistics, May 2024).

Design, develop, and maintain software applications and systems

Your actual take-home pay as a Software Engineer in Illinois depends on:

• Your specific salary or hourly rate
• Federal income tax (10% to 37% progressive rates)
• FICA taxes (7.65% for Social Security and Medicare)
• Illinois state income tax
• Local taxes (if applicable in your city)
• Health insurance and retirement contributions
• Cost of living in your specific city or region

Taxes for Software Engineer in Illinois

As a Software Engineer working in Illinois, you'll pay the following taxes on your income:

Federal Income Tax

Everyone in the US pays federal income tax, including Software Engineer professionals. The federal tax system uses progressive tax brackets ranging from 10% to 37%, meaning you pay different rates on different portions of your income.

FICA Taxes

Social Security and Medicare taxes (FICA) total 7.65% of your gross income:

• Social Security: 6.2% (on first $168,600 in 2025)
• Medicare: 1.45% (no income limit)
• Additional Medicare: 0.9% on income over $200,000

Illinois State Income Tax

Illinois has a state income tax that applies to all Software Engineer salaries earned in the state. The exact rate depends on Illinois's tax brackets and your total income.

Use our Illinois salary calculator to see your exact state tax based on your Software Engineer salary.

Cost of Living for Software Engineer in Illinois

Your Software Engineer salary goes further or shorter depending on the cost of living in your area of Illinois. Key factors include:

• Housing: Rent or mortgage payments (often 25-35% of take-home pay)
• Transportation: Car payments, gas, insurance, or public transit
• Food: Groceries and dining out
• Healthcare: Insurance premiums, copays, prescriptions
• Utilities: Electric, gas, water, internet

A $127,770 Software Engineer salary in a low-cost area of Illinois provides significantly more buying power than the same salary in an expensive metro area.

Software Engineer Salary Examples in Illinois

Here's what different Software Engineer salary levels look like in Illinois:

Estimated for a single filer, standard deduction, 2026 federal tax rates. Calculate your exact take-home →

Calculate your exact take-home pay: These are estimates. For precise calculations based on your specific situation, use our Illinois salary calculator.

Compare Software Engineer Salaries Across States

The same Software Engineer salary can result in very different take-home pay depending on the state:

• No-tax states (TX, FL, NV, TN, WA): Higher take-home pay
• Low-tax states (AZ, IN, ND, PA): Moderate take-home pay
• High-tax states (CA, NY, NJ, HI): Lower take-home pay

A $127,770 Software Engineer salary in California results in about $6,389 to $12,777 less take-home pay per year compared to the same salary in a no-tax state.

Frequently Asked Questions

What is the average Software Engineer salary in Illinois?

The median Software Engineer salary in Illinois is $127,770 (BLS, May 2024), with most earning between $98,800 and $159,280.

How much does a Software Engineer make after taxes in Illinois?

A Software Engineer earning the Illinois median of $127,770 takes home approximately $92,272 per year after federal tax (~$19,399) and FICA (~$9,774), plus Illinois state tax (~$6,325). Estimated for a single filer, standard deduction, 2026 federal tax rates. Calculate your exact take-home →

Is Illinois a good state for Software Engineer professionals?

It depends on your priorities. Consider Illinois's cost of living, career opportunities, quality of life, and state tax burden when evaluating your options.

Next Steps

Ready to see your exact Software Engineer take-home pay in Illinois?

Use our Illinois salary calculator →

Or compare Software Engineer salaries across different states to find the best location for your career.